Front

What is the definition of sine in a right triangle?

Back

Sine (sin) of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the ratio of the opposite side to the hypotenuse for sin 59°?

Back

AB/AC.

Front

What is the definition of a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

What is the simplified form of the ratio 8/10?

Back

4/5.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines cross. They are always equal.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie on opposite sides of a transversal and inside the two lines.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others.

Front

If ∠1 and ∠4 are vertical angles, what can be said about their measures?

Back

They are equal.

Front

How do you find the length of a side in a right triangle using sine?

Back

Length = sin(angle) * hypotenuse.

Front

What is the measure of angle JNK if it is given as 52°?

Back

m∠JNK = 52°.